Home / 11,143.37-15,380.13-6,427.01

Finding the Fourth Proportional to 11,143.37, 15,380.13 and 6,427.01

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Solution

The fourth proportional to 11,143.37, 15,380.13 and 6,427.01 is: 8,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.37 : 15,380.13 = 6,427.01 : x
  2. Step 2: Convert to fraction form
    11,143.37/15,380.13 = 6,427.01/x
  3. Step 3: Cross multiply
    11,143.37x = 15,380.13 × 6,427.01
  4. Step 4: Simplify right side
    11,143.37x = 98,848,172.41
  5. Step 5: Solve for x
    x = 98,848,172.41/11,143.37
  6. Step 6: Final answer
    x = 8,870.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.